研究论文
王崇效,徐赛兰,王志香,谭常,邰根福,余叔文.凤眼莲净化含酚污水的研究——Ⅰ.盆栽和氧化塘试验及几种环境条件对除酚的影响[J].环境科学学报,1986,6(2):207-215
凤眼莲净化含酚污水的研究——Ⅰ.盆栽和氧化塘试验及几种环境条件对除酚的影响
- STUDIES ON REMOVAL OF PHENOL FROM POLLUTED WATER BY WATERHYACINTHS (Eichhornia Crassipes)——Ⅰ . POT AND OXIDATION POND EXPERIMENTS AND EFFECTS OF SOME ENVIRONMENTAL CONDITIONS ON REMOVAL OF PHENOL
- 摘要:通过盆栽、模拟箱和氧化塘中凤眼莲净化含酚污水的试验表明:放养凤眼莲能使除酚过程加快,在0.6—10mg/L酚浓度范围内,植物净化速率为一般自然净化速率的2—3倍。在温度17—37℃范围内,凤眼莲均能明显加速酚水的净化。光照强度对凤眼莲净化酚水速率无显著影响。平衡地提高水中矿质营养元素的浓度,能加速除酚的过程。 水中含酚量小于1mg/L不造成植株中酚的残留;6mg/L以下酚含量增加亦不明显;10mg/L以上则随酚浓度的提高,植株中酚含量成倍增加。
- Abstract:It was shown that cultivation of water hyacinths promoted removal of phenol from waters. At a concentration range of 0.6-10mg/L of phenol, the rate of plant purification was 2-3 times as high as the natural cleaning effect. In order to bring the phenol concentrations of 0.36mg/L and 0.022mg/L down to the standard of water quality of fishery (0.005mg/L), the retention times of 36 and 8 hours in lagoon with water hyacinths were necessary.The rate of removal of phenol by water hyacinths increased with the increasing temperature in the range of 17-37℃. The light intensity had no significant influence on the rate of phenol removal. Increasing the concentration of mineral nutrients in balance was favorable to the Purification.Phenol concentrations under lmg/L in water did not cause the accumulation of phenol in water hyacinths plants.
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